Description

TransformedTargetRegressor returns the wrong _estimator_type when a classifier is passed as the regressor parameter.

Steps/Code to Reproduce

TransformedTargetRegressor(regressor=LogisticRegression())._estimator_type

Expected Results

'classifier'

Actual Results

'regressor'

Versions

System:
python: 3.7.2 (default, Jan 2 2019, 17:07:39) [MSC v.1915 64 bit (AMD64)]
executable: C:\Users\david\Anaconda3\envs\laserag_py37_skl0202\python.exe
machine: Windows-10-10.0.17763-SP0

Python dependencies:
pip: 18.1
setuptools: 41.0.1
sklearn: 0.22
numpy: 1.15.4
scipy: 1.1.0
Cython: 0.29.13
pandas: 0.25.1
matplotlib: 3.0.2
joblib: 0.14.0

Built with OpenMP: True